Structure and operational properties of porous cermets on the basis of alloyed steel scale

Compositions of batches for obtaining porous cermets on the basis of alloyed steel scale with addition of ferrosilicon have been developed. Roentgenograms of the obtained alloys were shown, mechanical durability and porosity of the obtained materials were investigated. The model of formation of porous cermets was offere

Spin disorder scattering in a ferromagnetic insulator-on-graphene structure

We theoretically study the transport properties of a single graphene layer between two insulating materials, i.e., a ferromagnetic EuO thin film and a nonmagnetic SiC substrate. An exchange interaction between the charge carrier spins in graphene and the localized magnetic moments in the ferromagnetic insulator is assumed. This proximity effect and the large spin fluctuations at temperatures close to the ferromagnetic transition temperature TC lead to spin disorder scattering, which is calculated using a Green's function technique. Numerical results indicate that at temperatures close to TC the contribution of the spin disorder scattering to the total electron mobility is clearly observable even in the case of a weak exchange interaction and a low background mobility of the graphene layer. This enables the experimental determination of the exchange interaction parameter using the present model and a simple resistivity measurement.Peer reviewe

Some features of the bioelectric activity of the muscles with prolonged hypokinesia

The effects of prolonged hypokinesia, brought on by confinement to bed and the attendant lack of motor activity, on the bioelectric activity of muscles are studied. Electromyographic measurements of amplitude and frequency indicators of muscular bioelectric activity were analyzed

Typology of strategies of personality meaning-making during professional education

The importance of the studied issue is conditioned by the fact that high dynamic of processes in the labour market requires constant work of an individual on self-determination and search for significance of his/her professional activity. The purpose of research is theoretical development and empirical verification of the types of strategies of meaning-making based on perceptions of future in terms of professional self-determination of the personality at the stage of vocational training. Basic research methods: modelling, psychosemantic approach, allowing to perform research process with the possibility of more in-depth analysis of the results. Research results: the model of the semantical future in the consciousness of the personality, which includes affective, cognitive, activity and intentional components is developed and empirically verified; the types of strategies of meaning-making based on perceptions of future in terms of professional selfdetermination of the personality at the stage of vocational training is identified, the typology includes the following 3 types of the meaning-making strategies: strategy of integration of the meaning of education and profession in the model of own future, strategy of disintegration and strategy of uncertainty and delay of the semantical choice. Significance of results: analysis of the semantical grounds for future professional activity will help optimize the training of a competent, competitive and adaptive specialist ready to continuous self-development, and to intensify the process of professional self-determination and building life and professional prospects of the personality at the stage of vocational training, as exactly at this stage the professional competence and identity is built up. © 2016 Shchipanova et al

The Organization of Exhibitions of Children's Creativity at Faculty of Art Education

The article presents the experience of the Faculty of Art Education with a differrent age audience in the framework of the educational project «Children's studio of artistic development and aesthetic education «Artist's Studio».В статье представлен опыт работы факультета художественного образования с разновозрастной аудиторией в рамках реализации образовательного проекта «Детская студия художественного развития и эстетического воспитания «Мастерская художника»

The role of RIG-I, AIM2 and IFI16 receptors for viral RNA and DNA in the pathogenesis of spontaneous and early missed miscarriage

Aim: to identify the features of the expression of mRNA of intracellular RIG-I, IFI16 and AIM2 receptors for viral RNA and DNA, and their signaling pathway proteins in the decidual tissue of patients with spontaneous and early missed miscarriage

Mineralogical comparative analysis of the clay fraction of solonetz and chestnut soil without apparent microrelief in the north-western part of the Caspian lowland

A comparative analysis of the mineralogical composition of the clay fraction (< 1 μm) of chestnut soil and solonetz has been performed in the article. Soils were studied in the oldest part of the Caspian lowland in north-west where the microrelief is not quite apparent (microdepressions no more than 5–10 cm depth), but with a contrast soil cover. The content of silt fraction in chestnut soil varies from 25.6 to 33.9%, in the solonetz – from 11.7 to 51.6%. In all horizons of the compared soils, except for the upper surface horizons (SEL, AU1), mixed-layered minerals dominate (39–52% in the fraction) over illite (27–37% in the fraction). In the surface horizons illite (48%) dominates over mixed-layer minerals (35%). The compared soils have some similarities in their crystal-chemical state: the imperfection of the kaolinite structure and the superdispersed state of the mixed-layer phase in the upper horizons, as well as the appearance of individual smectite and chlorite packets in the mixed-layer phase in the lower horizons (BC, C). The degree of perfection of the kaolinite structure both in the solonetz and in the meadow-chestnut soil increases towards the bottom of the profiles. The obtained data allow suggesting that in the meadow-chestnut soil the clay phase retained traces of the solonetzic stage of soil formation

Expression of indaleamine 2,3-dioxygenase mRNA in patients with spontaneous miscarriages at early stages of pregnancy

Expression mRNA of indoleamine 2,3-dioxygenase (IDO) and Toll-like receptors (TLR) 1-4 in epithelial cells of cervix uteri in 57 patients with early stage miscarriages (6-10 weeks of pregnancy) and 57 patients with artificial abortion (control group) was examined using quantitative polymerase chain reaction (PCR

Female reproductive tract microbiome and early miscarriages

The review presents new data on the impact of the vaginal and uterine microbiome on the local immunity, including defense against sexually transmitted infections, and its association with other factors of miscarriage

Migraine before rupture of intracranial aneurysms

BACKGROUND: Rupture of a saccular intracranial aneurysm (SIA) causes thunderclap headache but it remains unclear whether headache in general and migraine in particular are more prevalent in patients with unruptured SIA. METHODS: In a prospective case–control study 199 consecutive patients with SIA (103 females and 96 males, mean age: 43.2 years) received a semistructured face to face interview focusing on past headaches. All were admitted to hospital mostly because of rupture (177) or for unruptured aneurysm (22). In parallel we interviewed 194 blood donors (86 females, 108 males, mean age: 38.4 years). Diagnoses were made according to the International Headache Society criteria. Aneurysms were diagnosed by conventional cerebral angiography. RESULTS: During the year before rupture, 124 (62.3%) had one or more types of headache. These headaches included: migraine without aura (MO): 78 (39.2%), migraine with aura (MA): 2 (1%), probable migraine (PM): 4 (2%), tension-type headache (TTH): 39 (19.6%), cluster headache (CH): 2 (1%), posttraumatic headaches (PH): 2 (1%). 1-year prevalence of headaches in controls was 32.5% (63 patients out of 194), they included: TTH: 45 (23.1%), MO: 17(8.8%), PH: 1(0.5%). Only the prevalence of MO was significantly higher in patients with SIA (OR 6.7, 95% CI 3.8-11.9, p < 0.0001). CONCLUSIONS: Unruptured SIA cause a marked increase in the prevalence of migraine without aura but not in the prevalence of other types of headache